Differentiate between conservative and non-conservative forces.

1.	Differentiate between conservative and non-conservative forces.
Answer» Conservative force: A force is conservative (i) if the work done by the force in displacing a particle from one point to another is independent of the path followed by the particle and (ii) if the work done by the force in moving a particle around any closed path is zero. Examples : Gravitational force, electrostatic force and elastic force of a spring are all conservative forces. Non-conservative force: If the amount of work done in moving an object against a force from one point to another depends on the path along which the body moves, then such a force is called a non-conservative force. Examples : Forces of friction and viscosity are non-conservative forces.

Answer»

Conservative force: A force is conservative (i) if the work done by the force in displacing a particle from one point to another is independent of the path followed by the particle and (ii) if the work done by the force in moving a particle around any closed path is zero.

Examples : Gravitational force, electrostatic force and elastic force of a spring are all conservative forces.

Non-conservative force: If the amount of work done in moving an object against a force from one point to another depends on the path along which the body moves, then such a force is called a non-conservative force.

Examples : Forces of friction and viscosity are non-conservative forces.

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